1N5D

CRYSTAL STRUCTURE OF PORCINE TESTICULAR CARBONYL REDUCTASE/ 20BETA-HYDROXYSTEROID DEHYDROGENASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Porcine Carbonyl Reductase: Structural Basis for a Functional Monomer in Short-Chain Dehydrogenases/Reductases

Ghosh, D.Sawicki, M.Pletnev, V.Erman, M.Duax, W.L.Ohno, S.Nakajin, S.

(2001) J.Biol.Chem. 276: 18457-18463

  • DOI: 10.1074/jbc.M100538200
  • Primary Citation of Related Structures:  1HU4

  • PubMed Abstract: 
  • Porcine testicular carbonyl reductase (PTCR) belongs to the short chain dehydrogenases/reductases (SDR) superfamily and catalyzes the NADPH-dependent reduction of ketones on steroids and prostaglandins. The enzyme shares nearly 85% sequence identity ...

    Porcine testicular carbonyl reductase (PTCR) belongs to the short chain dehydrogenases/reductases (SDR) superfamily and catalyzes the NADPH-dependent reduction of ketones on steroids and prostaglandins. The enzyme shares nearly 85% sequence identity with the NADPH-dependent human 15-hydroxyprostaglandin dehydrogenase/carbonyl reductase. The tertiary structure of the enzyme at 2.3 A reveals a fold characteristic of the SDR superfamily that uses a Tyr-Lys-Ser triad as catalytic residues, but exhibits neither the functional homotetramer nor the homodimer that distinguish all SDRs. It is the first known monomeric structure in the SDR superfamily. In PTCR, which is also active as a monomer, a 41-residue insertion immediately before the catalytic Tyr describes an all-helix subdomain that packs against interfacial helices, eliminating the four-helix bundle interface conserved in the superfamily. An additional anti-parallel strand in the PTCR structure also blocks the other strand-mediated interface. These novel structural features provide the basis for the scaffolding of one catalytic site within a single molecule of the enzyme.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Studies of a Mammalian Steroid Dehydrogenase
      Ghosh, D.,Erman, M.,Pangborn, W.,Duax, W.L.,Nakajin, S.,Ohno, S.,Shinoda, M.
      (1993) J.Steroid Biochem.Mol.Biol. 46: 103


    Organizational Affiliation

    Department of Structural Biology, Hauptman-Woodward Medical Research Institute, Buffalo, New York 14203, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CARBONYL REDUCTASE/20BETA-HYDROXYSTEROID DEHYDROGENASE
A
288Sus scrofaGene Names: CBR1 (CBR, CRN)
EC: 1.1.1.197, 1.1.1.189, 1.1.1.184
Find proteins for Q28960 (Sus scrofa)
Go to Gene View: CBR1
Go to UniProtKB:  Q28960
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
NDP
Query on NDP

Download SDF File 
Download CCD File 
A
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.194 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 58.530α = 90.00
b = 58.530β = 90.00
c = 165.640γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
PHASESphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2002-11-05 
  • Released Date: 2002-11-13 
  • Deposition Author(s): Ghosh, D.
  • This entry supersedes: 1HU4

Revision History 

  • Version 1.0: 2002-11-13
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description